Unused - new open box

Details from the web below:

• This zoom photo attachment for digital SLR cameras* offers a focal length of 680-1,000mm with brighter and higher-quality photographs than ever before.
• *The focal distance is 1,000mm when a full-size digital single lens reflex camera is used.
• This adapter replaces the eyepiece of the spotting scope and the lens of the camera effectively making the spotting scope the camera lens.